Well, that makes you the luckiest boy alive.
3 seconds sound clip from the James and the Giant Peach (1996) movie soundboard.
You can hear this line at 00:14:08.330 in the Blu-ray version of the movie.
Quote context
[...]
- Oh! No! No, wait! Wait! No! No, wait!
- Here he is. Get up, you little worm! We sent you out here to kill a spider.
- I wasn't lazing about. I tripped.
- How dare you disagree with us?
- Well, that makes you the luckiest boy alive.
- Now come inside and get dressed.
- A what?
- A peach! There! On that branch.
- Why, that old tree's never had so much as a blossom on it, let alone a...
- Well, I'll be blowed. There really is a peach there. A nice, big one, too.
[...]